Normal Operation - Occupant Classification System Module (OCSM)
The Occupant Classification System Module (OCSM) continuously monitors the input voltage for correct operation. If the OCSM detects input voltage below 9.6 volts when another OCS fault is present, or if the OCSM detects voltage below 7.6 volts, regardless of fault status, it stores DTC U3003:16 in memory. If the OCSM detects input voltage above 16.5 volts when another OCS fault is present, or if the OCSM detects voltage above 18.5 volts, regardless of fault status, it stores DTC U3003:17 in memory. If the OCSM sets DTC U3003:16 or U3003:17, it sends a fault message to the RCM . The RCM then sends a message to the IPC to illuminate the airbag warning indicator.
| DTC Description | Fault Trigger Conditions |
|---|---|
|
This DTC sets if the RCM detects voltage below 9.5 volts with a Supplemental Restraint System (SRS) fault. |
|
This DTC sets if the RCM detects voltage above 16 volts with a SRS fault or above 20 volts without a SRS fault. |
|
This DTC sets if the OCSM detects voltage below 9.6 volts when another OCS fault is present, or if the OCSM detects voltage below 7.6 volts, regardless of fault status. |
|
This DTC sets if the OCSM detects voltage above 16.5 volts when another OCS fault is present, or if the OCSM detects voltage above 18.5 volts, regardless of fault status. |
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- RCM
- OCSM